You need to set 'GatewayPorts' to 'yes' in your 'sshd_config' file.
Otherwise, you'll see lot of errors like the ones you are talking about.
Just make sure that these lines are in your sshd_config file:
Code:
AllowTcpForwarding yes
GatewayPorts yes
If most of your traffic is working you most likely either already have the 'AllowTcpForwarding' option set properly, or it is unset. Yes is the default. 'GatewayPorts,' however, defaults to no.